/* Tech4SEO Tools v3 — tools.css */
:root{
    --t4s-purple:#5b21b6;--t4s-purple-l:#7c3aed;
    --t4s-green:#16a34a;--t4s-orange:#ea580c;--t4s-red:#dc2626;--t4s-amber:#d97706;
    --t4s-pass:#16a34a;--t4s-warn:#d97706;--t4s-fail:#dc2626;
    --t4s-border:#e5e7eb;--t4s-bg:#f9fafb;--t4s-radius:12px;
}
*{box-sizing:border-box;}
.t4s-tool-wrap{font-family:-apple-system,BlinkMacSystemFont,'Segoe UI',sans-serif;font-size:14px;max-width:800px;border:1px solid var(--t4s-border);border-radius:var(--t4s-radius);overflow:hidden;margin:20px 0;box-shadow:0 2px 16px rgba(0,0,0,.07);}

/* Header */
.t4s-tool-header{background:linear-gradient(135deg,var(--t4s-purple),var(--t4s-purple-l));color:#fff;padding:16px 20px;display:flex;align-items:center;justify-content:space-between;gap:10px;}
.t4s-tool-title{display:flex;align-items:center;gap:10px;}
.t4s-tool-title strong{display:block;font-size:14px;}
.t4s-tool-title small{font-size:11px;opacity:.8;}
.t4s-icon{font-size:22px;}
.t4s-badge{background:rgba(255,255,255,.15);border:1px solid rgba(255,255,255,.3);border-radius:20px;padding:3px 10px;font-size:11px;white-space:nowrap;}

/* Body */
.t4s-tool-body{background:#fff;padding:20px;border-top:1px solid var(--t4s-border);}
.t4s-section-title{font-size:15px;font-weight:700;margin:0 0 4px;}
.t4s-section-desc{font-size:12px;color:#6b7280;margin:0 0 14px;}

/* URL row */
.t4s-url-row{display:flex;gap:8px;margin-bottom:10px;}
.t4s-url-row .t4s-input{flex:1;margin:0;}
.t4s-input,.t4s-textarea{width:100%;border:1.5px solid var(--t4s-border);border-radius:8px;padding:10px 13px;font-size:13px;outline:none;transition:border .2s;font-family:inherit;}
.t4s-input:focus,.t4s-textarea:focus{border-color:var(--t4s-purple-l);}
.t4s-input-sm{width:90px;}
.t4s-textarea{resize:vertical;margin-bottom:10px;}

/* Buttons */
.t4s-btn{display:inline-flex;align-items:center;gap:7px;padding:10px 18px;border-radius:8px;font-size:13px;font-weight:600;cursor:pointer;border:none;transition:filter .2s,transform .1s;white-space:nowrap;}
.t4s-btn:hover{filter:brightness(1.07);}
.t4s-btn:active{transform:scale(.98);}
.t4s-btn-primary{background:linear-gradient(135deg,var(--t4s-purple),var(--t4s-purple-l));color:#fff;justify-content:center;}
.t4s-btn-secondary{background:var(--t4s-bg);border:1.5px solid var(--t4s-border);color:#374151;}
.t4s-btn-dot{width:7px;height:7px;background:rgba(255,255,255,.75);border-radius:50%;animation:t4s-pulse 1.4s infinite;}
@keyframes t4s-pulse{0%,100%{opacity:.7}50%{opacity:1;transform:scale(1.3)}}
.t4s-btn-row{display:flex;gap:8px;margin-bottom:10px;}
.t4s-btn-row .t4s-btn-primary{flex:1;}
.t4s-options-row{display:flex;gap:14px;font-size:12px;color:#6b7280;margin-bottom:14px;}
.t4s-options-row label{display:flex;align-items:center;gap:4px;cursor:pointer;}

/* Loading / error */
.t4s-loading{display:flex;align-items:center;gap:9px;font-size:13px;color:var(--t4s-purple);padding:12px 0;}
.t4s-spinner{width:18px;height:18px;border:2.5px solid #ede9fe;border-top-color:var(--t4s-purple);border-radius:50%;animation:t4s-spin .65s linear infinite;flex-shrink:0;}
@keyframes t4s-spin{to{transform:rotate(360deg)}}
.t4s-error-msg{background:#fef2f2;border:1px solid #fecaca;color:#dc2626;border-radius:8px;padding:10px 13px;font-size:13px;}

/* ── SCORE RING ── */
.t4s-score-section{display:flex;align-items:center;gap:24px;padding:16px 0 10px;flex-wrap:wrap;}
.t4s-ring-wrap{flex-shrink:0;}
.t4s-score-info{flex:1;min-width:140px;}
.t4s-score-big{font-size:40px;font-weight:900;line-height:1.1;}
.t4s-score-sub{font-size:12px;color:#9ca3af;margin-bottom:8px;}
.t4s-grade-pill{display:inline-block;padding:2px 14px;border-radius:20px;color:#fff;font-weight:800;font-size:14px;}
.t4s-audit-url{font-size:11px;color:#9ca3af;margin-top:6px;word-break:break-all;}

/* ── STAT CARDS ── */
.t4s-stat-cards{display:grid;grid-template-columns:repeat(3,1fr);gap:10px;margin:14px 0;}
.t4s-stat-card{border:1.5px solid var(--t4s-border);border-radius:10px;padding:14px 10px;text-align:center;}
.t4s-stat-lbl{font-size:10px;font-weight:700;color:#6b7280;text-transform:uppercase;letter-spacing:.06em;margin-bottom:5px;}
.t4s-stat-val{font-size:28px;font-weight:900;line-height:1;}
.t4s-col-green{color:var(--t4s-green);}
.t4s-col-red{color:var(--t4s-red);}
.t4s-col-orange{color:var(--t4s-orange);}
.t4s-col-dark{color:#111827;}

/* ── SCORE BREAKDOWN ── */
.t4s-breakdown{margin:16px 0 8px;}
.t4s-breakdown-hd{font-size:13px;font-weight:700;color:#111827;margin-bottom:10px;}
.t4s-bar-row{display:flex;align-items:center;gap:9px;margin-bottom:7px;font-size:12px;}
.t4s-bar-label{width:112px;flex-shrink:0;color:#374151;}
.t4s-bar-track{flex:1;background:#f3f4f6;border-radius:4px;height:8px;overflow:hidden;}
.t4s-bar-fill{height:100%;border-radius:4px;transition:width .6s ease;}
.t4s-bar-pct{width:34px;text-align:right;font-weight:700;flex-shrink:0;}

/* ── TABS ── */
.t4s-tabs-wrap{border-top:1px solid var(--t4s-border);background:#fff;padding:14px 20px 0;}
.t4s-tabs{display:flex;flex-wrap:wrap;gap:4px;border-bottom:2px solid var(--t4s-border);}
.t4s-tab{padding:7px 12px;border-radius:8px 8px 0 0;font-size:12px;font-weight:600;cursor:pointer;border:1.5px solid transparent;border-bottom:none;color:#6b7280;background:none;transition:all .15s;position:relative;bottom:-2px;line-height:1;}
.t4s-tab:hover{background:#f3f4f6;color:#374151;}
.t4s-tab.active{background:#fff;border-color:var(--t4s-border);color:var(--t4s-purple);border-bottom-color:#fff;}
.t4s-tab-cnt{display:inline-block;background:#e5e7eb;color:#374151;border-radius:10px;padding:0 5px;font-size:10px;margin-left:3px;font-weight:700;}
.t4s-tab-cnt.red{background:#fee2e2;color:#dc2626;}
.t4s-tab-body{padding:18px 20px 20px;background:#fff;}
.t4s-panel{display:none;}
.t4s-panel.active{display:block;}

/* Footer credit */
.t4s-credit{text-align:center;padding:14px 20px;font-size:11px;color:#9ca3af;border-top:1px solid var(--t4s-border);}
.t4s-credit a{color:var(--t4s-purple);text-decoration:none;}

/* ── CHECKLIST ── */
.t4s-checklist-title{font-size:15px;font-weight:700;margin:0 0 14px;}
.t4s-chk-row{display:flex;align-items:center;justify-content:space-between;padding:12px 14px;border:1px solid var(--t4s-border);border-radius:8px;margin-bottom:8px;font-size:13px;}
.t4s-chk-row:last-child{margin-bottom:0;}
.t4s-chk-label{color:#374151;}
.t4s-badge-pill{display:inline-block;padding:3px 10px;border-radius:20px;font-size:12px;font-weight:600;}
.t4s-pill-green{background:#dcfce7;color:#15803d;}
.t4s-pill-red{background:#fee2e2;color:#b91c1c;}
.t4s-pill-amber{background:#fef3c7;color:#92400e;}
.t4s-pill-blue{background:#dbeafe;color:#1d4ed8;}
.t4s-pill-gray{background:#f3f4f6;color:#374151;}

/* ── TIPS ── */
.t4s-tips-title{font-size:15px;font-weight:700;margin:0 0 14px;}
.t4s-tip-row{border-left:4px solid var(--t4s-purple-l);background:#f5f3ff;border-radius:0 8px 8px 0;padding:11px 14px;margin-bottom:10px;font-size:13px;color:#374151;line-height:1.5;}
.t4s-tip-row:last-child{margin-bottom:0;}
.t4s-tip-row code{background:#ede9fe;color:var(--t4s-purple);padding:1px 6px;border-radius:4px;font-size:12px;font-family:monospace;margin:0 2px;}

/* ── IMAGES ── */
.t4s-img-stats{display:grid;grid-template-columns:repeat(3,1fr);gap:10px;margin-bottom:14px;}
.t4s-mini-card{border:1.5px solid var(--t4s-border);border-radius:8px;padding:12px 8px;text-align:center;}
.t4s-mini-lbl{font-size:10px;font-weight:700;text-transform:uppercase;letter-spacing:.06em;color:#6b7280;margin-bottom:4px;}
.t4s-mini-val{font-size:24px;font-weight:900;}
.t4s-img-grid{display:flex;flex-wrap:wrap;gap:10px;}
.t4s-img-thumb{width:100px;text-align:center;}
.t4s-img-thumb img{width:100px;height:70px;object-fit:cover;border-radius:6px;border:2px solid #fca5a5;display:block;}
.t4s-img-thumb.ok img{border-color:#86efac;}
.t4s-img-caption{font-size:10px;margin-top:4px;color:#dc2626;font-weight:600;}
.t4s-img-thumb.ok .t4s-img-caption{color:#16a34a;}

/* ── HEADINGS ── */
.t4s-headings-title{font-size:15px;font-weight:700;margin:0 0 14px;}
.t4s-head-table{width:100%;border-collapse:collapse;font-size:13px;}
.t4s-head-table th{background:#f9fafb;font-weight:700;padding:9px 12px;text-align:left;border-bottom:2px solid var(--t4s-border);}
.t4s-head-table td{padding:9px 12px;border-bottom:1px solid var(--t4s-border);vertical-align:top;}
.t4s-head-table tr:last-child td{border-bottom:none;}
.t4s-htag{display:inline-block;width:30px;height:22px;line-height:22px;text-align:center;border-radius:6px;background:#f3f4f6;color:#374151;font-size:11px;font-weight:700;border:1px solid #e5e7eb;}
.t4s-htag-h1{background:#ede9fe;color:var(--t4s-purple);border-color:#c4b5fd;}
.t4s-htag-h2{background:#dbeafe;color:#1d4ed8;border-color:#bfdbfe;}
.t4s-htag-indent-1{padding-left:0!important;}
.t4s-htag-indent-2{padding-left:20px!important;}
.t4s-htag-indent-3{padding-left:36px!important;}
.t4s-htag-indent-4{padding-left:50px!important;}

/* ── LINKS ── */
.t4s-links-stats{display:grid;grid-template-columns:repeat(3,1fr);gap:10px;margin-bottom:14px;}
.t4s-links-tip{font-size:12px;color:#6b7280;background:#f9fafb;border:1px solid var(--t4s-border);border-radius:8px;padding:10px 14px;line-height:1.5;}

/* ── ARIA ── */
.t4s-aria-section{margin-bottom:16px;}
.t4s-aria-section-hd{font-size:13px;font-weight:700;color:#111827;margin-bottom:8px;}
.t4s-tag-chips{display:flex;flex-wrap:wrap;gap:7px;}
.t4s-chip{display:inline-block;padding:4px 12px;border-radius:20px;font-size:12px;font-weight:500;}
.t4s-chip-green{background:#dcfce7;color:#15803d;border:1px solid #86efac;}
.t4s-chip-red{background:#fee2e2;color:#b91c1c;border:1px solid #fca5a5;}
.t4s-chip-amber{background:#fef3c7;color:#92400e;border:1px solid #fcd34d;}
.t4s-chip-blue{background:#dbeafe;color:#1d4ed8;border:1px solid #93c5fd;}

/* ── META ── */
.t4s-meta-table{width:100%;border-collapse:collapse;font-size:13px;}
.t4s-meta-table th{background:#f9fafb;font-weight:700;padding:9px 12px;text-align:left;border-bottom:2px solid var(--t4s-border);width:150px;}
.t4s-meta-table td{padding:10px 12px;border-bottom:1px solid var(--t4s-border);color:#374151;line-height:1.4;}
.t4s-meta-table tr:last-child td,.t4s-meta-table tr:last-child th{border-bottom:none;}
.t4s-meta-val{word-break:break-word;}
.t4s-char-count{font-size:11px;color:#9ca3af;margin-left:6px;}
.t4s-meta-pill{display:inline-block;padding:2px 10px;border-radius:20px;font-size:11px;font-weight:600;}
.t4s-meta-green{background:#dcfce7;color:#15803d;}
.t4s-meta-amber{background:#fef3c7;color:#92400e;}
.t4s-meta-red{background:#fee2e2;color:#b91c1c;}
.t4s-meta-gray{background:#f3f4f6;color:#374151;}

/* ── READABILITY ── */
.t4s-read-cards{display:grid;grid-template-columns:repeat(3,1fr);gap:10px;margin-bottom:14px;}
.t4s-read-card{border:1.5px solid var(--t4s-border);border-radius:8px;padding:14px 10px;text-align:center;}
.t4s-read-lbl{font-size:10px;font-weight:700;text-transform:uppercase;letter-spacing:.06em;color:#6b7280;margin-bottom:5px;}
.t4s-read-val{font-size:26px;font-weight:900;}
.t4s-read-hint{font-size:11px;color:#9ca3af;margin-top:3px;}
.t4s-read-desc{font-size:12px;color:#6b7280;margin-bottom:10px;}
.t4s-fre-bar{background:#f3f4f6;border-radius:6px;height:12px;overflow:hidden;margin-bottom:8px;}
.t4s-fre-fill{height:100%;border-radius:6px;transition:width .8s;}
.t4s-fre-labels{display:flex;justify-content:space-between;font-size:10px;color:#9ca3af;}
.t4s-verdict{display:flex;align-items:center;gap:7px;font-size:13px;font-weight:600;margin-top:10px;}

/* ── CONTRAST ── */
.t4s-contrast-hd{font-size:15px;font-weight:700;margin:0 0 4px;}
.t4s-contrast-subhd{font-size:12px;color:#6b7280;margin:0 0 16px;}
.t4s-contrast-row{display:grid;grid-template-columns:1fr 1fr;gap:12px;margin-bottom:12px;}
.t4s-color-lbl{font-size:12px;font-weight:600;color:#374151;margin-bottom:6px;}
.t4s-color-swatch{width:100%;height:44px;border:1.5px solid var(--t4s-border);border-radius:8px;cursor:pointer;padding:2px;}
.t4s-contrast-opts{display:flex;gap:16px;align-items:center;margin-bottom:14px;font-size:13px;flex-wrap:wrap;}
.t4s-contrast-preview-lbl{font-size:12px;font-weight:600;color:#374151;margin-bottom:8px;}
.t4s-preview-box{border:1.5px solid var(--t4s-border);border-radius:8px;padding:16px;font-size:18px;margin-bottom:14px;transition:background .2s,color .2s,font-size .2s;}
.t4s-contrast-badges{display:flex;align-items:center;gap:10px;flex-wrap:wrap;margin-bottom:10px;}
.t4s-ratio-badge{font-weight:700;font-size:14px;}
.t4s-wcag-pill{display:inline-flex;align-items:center;gap:5px;padding:5px 12px;border-radius:8px;font-size:12px;font-weight:700;}
.t4s-wcag-pass{background:#dcfce7;color:#15803d;}
.t4s-wcag-fail{background:#fee2e2;color:#b91c1c;}
.t4s-wcag-key{font-size:11px;color:#9ca3af;}

/* ── ISSUES ── */
.t4s-issues-title{font-size:15px;font-weight:700;margin:0 0 14px;}
.t4s-issue-row{display:flex;gap:12px;align-items:flex-start;padding:12px 14px;border-radius:8px;margin-bottom:8px;font-size:12px;line-height:1.5;border-left:4px solid transparent;}
.t4s-issue-error{background:#fef2f2;border-left-color:var(--t4s-red);}
.t4s-issue-warning{background:#fffbeb;border-left-color:var(--t4s-amber);}
.t4s-issue-type{display:inline-block;padding:3px 9px;border-radius:20px;font-size:11px;font-weight:700;white-space:nowrap;flex-shrink:0;margin-top:1px;}
.t4s-type-error{background:#fee2e2;color:#b91c1c;}
.t4s-type-warning{background:#fef3c7;color:#92400e;}
.t4s-issue-row span{color:#374151;}

/* ── SPAM ── */
.t4s-spam-card{border:1.5px solid var(--t4s-border);border-radius:10px;margin-bottom:12px;overflow:hidden;}
.t4s-spam-hdr{display:flex;align-items:center;justify-content:space-between;padding:11px 15px;background:var(--t4s-bg);cursor:pointer;}
.t4s-spam-domain{font-weight:700;font-size:13px;}
.t4s-verdict-badge{display:inline-flex;align-items:center;gap:6px;padding:3px 11px;border-radius:20px;font-size:12px;font-weight:700;}
.t4s-v-clean{background:#dcfce7;color:#15803d;}.t4s-v-low{background:#dbeafe;color:#1d4ed8;}
.t4s-v-medium{background:#fef3c7;color:#92400e;}.t4s-v-high{background:#fed7aa;color:#9a3412;}.t4s-v-spam{background:#fee2e2;color:#b91c1c;}
.t4s-sbar-wrap{padding:0 15px 4px;}.t4s-sbar-track{background:#e5e7eb;border-radius:4px;height:5px;overflow:hidden;}
.t4s-sbar-fill{height:100%;border-radius:4px;transition:width .5s;}
.t4s-signals{padding:8px 15px 14px;display:none;}
.t4s-sig-row{display:flex;gap:8px;align-items:flex-start;padding:5px 0;border-bottom:1px solid var(--t4s-border);font-size:12px;}
.t4s-sig-row:last-child{border-bottom:none;}
.t4s-sig-dot{width:8px;height:8px;border-radius:50%;margin-top:3px;flex-shrink:0;}
.t4s-sig-low{background:var(--t4s-green);}.t4s-sig-medium{background:var(--t4s-amber);}.t4s-sig-high{background:var(--t4s-red);}
.t4s-sig-name{font-weight:600;min-width:120px;}
.t4s-chev{font-size:11px;transition:transform .2s;}.t4s-chev.open{transform:rotate(180deg);}

@media(max-width:520px){
    .t4s-stat-cards,.t4s-img-stats,.t4s-links-stats,.t4s-read-cards{grid-template-columns:1fr 1fr;}
    .t4s-contrast-row{grid-template-columns:1fr;}
    .t4s-url-row,.t4s-btn-row{flex-direction:column;}
    .t4s-score-section{flex-direction:column;gap:10px;}
}